Netopia R7200 - Manual (Page 242)

G-2 User’s Reference Guide
Because over 300,000 lines are already deployed using HDSL, ser vice providers feel comfor table with SDSL
since it uses the same technology as its predecessor and ISDN. The line coding employed by both HDSL and
ISDN has not caused any inter ference with existing ser vices like T1. This means ser vice providers deploy SDSL
solutions without worr y about impact on other ser vices in neighboring binder groups.